Shuttle for sewing-machin es



(No Model.)

J. P. MOKENNEY. SHUTTLE FOR SEWING MACHINES.

No. 406,368. Patented July 2, 1889.

UNITED STATES PATENT @FFICEo J. FREEMAN MOKENNEY, OF BALTIMORE, MARYLAND.

SHUTTLE FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 406,368, dated July 2, 1889.

Application filed July 9, 1887. Serial No. 243,864. (No model.)

To all whom it may concern.-

Be it known that I, J. FREEMAN McKENNEY, of the city of Baltimore, in the State of Maryland, have invented a Certain new and useful Improvement in Shuttles for Sewing-Machines; and I do hereby declare that the following specification, with the drawings making a part of thesame, is a full, clear, and exact description of the same.

In the class of sewingmachine shuttles known as cylinder or cylindrical bored shuttles, the outer surface has been made so nearly cylindrical in form that the motion of the shuttle and drawing of the thread cause them to roll in the race, thus removing at times the point of the shuttle from the face of the race, with which it should always be in close contact, so that the shuttle sometimes fails to pass through the needle-loop and thus skip stitches. This rolling of the shuttle also wears the face of the same to a rounding or cylindrical form, and also destroys the original curve of the shuttle-face, thus rapidly increasing the trouble.

The object of my invention is to furnish a cylindrically-bored shuttle which shall not be open to this objection; and with this object in view I will describe my shuttle.

My invention consists in providing a cylindrically-bored sewing-machine shuttle with a flat side or base upon the under part thereof, at an acute angle with the flat face of the shuttle, in such a manner that when the shuttle is in place in the machine the flat surface or base will rest in close contact with the flat surface of the shuttle-carrier in such manner as to prevent the shuttle from rolling in the race.

Figure 1 is a top plan view of so much of a sewing-machine as is necessary to show the slides, (shuttle-race covers,) the feed, and the' thread-plate (needle-plate) removed to afford an uninterrupted view of the shuttle.

D, in Figs. 2 and 3, is the flat side or base designed to rest in contact with the shuttlecarrier 13. I

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is

1. A sewing-machine shuttle having a cylindrically-bored barrel provided with a flattened face curved in the direction of the length of the shuttle, and a flattened bottom surface at. an acute angle with the flattened face, as set forth.

2. The combination, with the shuttle-race having a flat curved side engaging the face of the shuttle, and a carrier having a flat surface engaging the bottom of the shuttle, as set forth, of a shuttle provided witha flattened face curved in the direction of its length, and a flattened bottom surface at an acute angle with said flattened face, as and for the purposes described.

In testimony whereof I affix my signature in presence of two witnesses.

J. FREEMAN MCKENNEY.

Witnesses:

SHIPLEY B AsHEARs, HARRY L. AMER. 

